Resistive Patents (Class 178/18.05)
  • Patent number: 8614689
    Abstract: In a method for connecting lead wires to a touch panel, the method includes the steps of: providing through holes 9a to 9d the number of which corresponds to the number of electrode ends by perforation in a lower electrode plate 3; using a metal-pin 11 having a pin-shaft 11b and a disk shaped pin-head 11a with a diameter larger than an outer diameter of the pin-shaft; inserting the pin-shaft 11b into a metal-pin fixing hole formed corresponding to the through hole 9a at a circuit 10c in a connector tail of a lead wire 10, whereby the pin-shaft 11b is erectly provided on the connector tail of the lead wire 10; and inserting the pin-shafts 11b to 14b into the through holes 9a to 9d, and in addition, electrically connecting the pin-shaft inserted into a lower electrode plate 3 through a conductive adhesive 15 to electrode ends 6c, 7c, 6d, 7d.
    Type: Grant
    Filed: January 16, 2006
    Date of Patent: December 24, 2013
    Assignee: Nissha Printing Co., Ltd.
    Inventors: Kazuhiro Nishikawa, Yoshihiro Kai, Kazuto Nakamura
  • Patent number: 8605040
    Abstract: Provided is a resistance film type input device including: a first light transmission substrate and a second light transmission substrate which face each other; a first light transmission planar electrode formed on the surface of the first light transmission substrate, which faces the second light transmission substrate, in an input region, and first band-shaped electrodes having a sheet resistance value lower than that of the first planar electrode and electrically connected along both ends which face each other in a first direction of the first planar electrode; and a second light transmission planar electrode formed on the surface of the second light transmission substrate, which faces the first light transmission substrate, in the input region, and second band-shaped electrodes having a sheet resistance value lower than that of the second planar electrode and electrically connected along both ends which face each other in a second direction perpendicular to the first direction of the second planar electro
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: December 10, 2013
    Assignee: Japan Display West, Inc.
    Inventor: Mutsumi Matsuo
  • Patent number: 8599150
    Abstract: A touchscreen includes touchscreen electrode elements distributed across an active area of a substrate, and the touchscreen overlays a display. The touchscreen electrode elements are configured to avoid creating moiré patterns between the display and the touchscreen, such as angled, wavy, zig-zag, or randomized lines. In a further example, the electrodes form a mesh pattern configured to avoid moiré patterns.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: December 3, 2013
    Assignee: Atmel Corporation
    Inventor: Harald Philipp
  • Patent number: 8599138
    Abstract: An information processing apparatus is provided which includes a position acquisition unit for obtaining a display position of an input area in a display area, and a display control unit for controlling, based on the display position of the input area, in the display area a display position of an input operation area in which a character to be displayed in the input area is input. The display control unit displays the input area near the display position of the input area, and makes the input operation area follow the movement of the input area when the display position of the input area is moved.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: December 3, 2013
    Assignee: Sony Corporation
    Inventors: Kazuma Takahashi, Manabu Yasumi
  • Patent number: 8599161
    Abstract: In one embodiment, an apparatus includes a display and a first and second substrate. Each substrate has a surface facing toward the display; a surface facing away from the display; and drive or sense electrodes of a touch sensor disposed on the surface of each substrate facing away from the display. The drive or sense electrodes are made of a conductive mesh of conductive material. The apparatus also includes an adhesive layer between the first and second substrates.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 3, 2013
    Assignee: Atmel Corporation
    Inventor: Harald Philipp
  • Patent number: 8587526
    Abstract: A system and method for providing feedback to a user making a gesture for switching between at least two types of user interactions used to operate a digitizer system, the method comprising recognizing the gesture to switch between the types of user interactions, switching the type of user interaction used to operate the digitizer system, and providing feedback to the user indicating recognition of the gesture.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 19, 2013
    Assignee: N-trig Ltd.
    Inventors: Leonard Engelhardt, Jonathan Moore
  • Patent number: 8576177
    Abstract: Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: November 5, 2013
    Assignee: Apple Inc.
    Inventors: Wayne Westerman, John G. Elias
  • Patent number: 8564557
    Abstract: A method for parallel-scanning differential touch detection is disclosed herein. The method includes generating a plurality of first outputs by a differential unit according to a plurality of first inputs provided by a plurality of sensors of a touch panel in each scan of total i scans, herein, the kth first output in the jth scan of the total i scans is the (i*(k?1)+j)th output in the continuous first outputs, i?2, j?1, k?1, and i, j, k are natural numbers. Wherein, the differential unit has a plurality of subtractors and the inputs of the subtractors are connected in series. By doing so, the noises between a touch panel and a display can be eliminated.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: October 22, 2013
    Assignee: Egalax—Empia Technology Inc.
    Inventors: Chin-Fu Chang, Cheng-Han Lee, Chi-Hao Tang, Shun-Lung Ho
  • Patent number: 8564561
    Abstract: A method of detecting a contact state includes measuring first, second, third and fourth potentials. The method further includes deriving distance information between two points when a first resistive film contacts a second resistive film at the two points, based on the first, second, third and fourth potentials. The first, second, third and fourth potentials are potentials at fourth, second, third and fourth end regions, respectively, in first, second, third and fourth states, respectively. A first end region is an end region, as viewed in a first direction, and the second end region is an end region opposite to the first end region of the first resistive film. The third end region is an end region, as viewed in a second direction, and the fourth end region is an end region opposite to the third end region of the second resistive film.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: October 22, 2013
    Assignee: Casio Computer Co., Ltd.
    Inventor: Masanori Sakamoto
  • Patent number: 8552995
    Abstract: A touch sensor senses the presence of an object at one of a plurality of channels on a surface of the touch sensor, wherein proximity of the object to the touch sensor results in a change in capacitance at the position of the channel. The touch sensor includes a drive circuit and a charge sensing circuit, each coupled to each of the channels. The charge sensing circuit includes at least one charge measurement capacitor. A measurement cycle is applied to the touch sensor having a drive portion and a sense portion. During the drive portion a charge is applied to the channels and therefore the charge measurement capacitors of the touch sensor, and during a sense portion the charge measurement capacitors are discharged by a predetermined amount and the remaining charge on the charge measurement capacitors is measured.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: October 8, 2013
    Assignee: Atmel Corporation
    Inventors: Harald Philipp, Esat Yilmaz
  • Patent number: 8547350
    Abstract: A force/displacement touch device, this invention employs a base-plane 32 and flexible mounting material to suspend, or “float,” a non-rigidly mounted touch-plane 12, and uses sensors at each mounting point 22 to measure Z-axis deflection of the floating touch-plane 12. The system adapts existing planes in typical LCD assemblies to implement touch screens. This floating touch detection system provides an accurate, sensitive, compact and low-cost solution. It mitigates XY friction to improve detection of Z-forces. This approach provides latitude in locating sensors 34, allows for additional mid-plane sensors, enables greater accuracy and resolution, and adds features such as “multi-touch” sensitivity.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: October 1, 2013
    Inventors: Noah L. Anglin, Krystyna Maliniak
  • Patent number: 8531431
    Abstract: Disclosed are a touch sensor and a method for determining a position, in three dimensions, of a conducting object with respect to a display device of the touch sensor. The determination of the position of the conducting object is done by performing at least one measurement of the capacitive load of at least one display electrode of the display wherein the measurement is performed by charging the capacitive load of the at least one display electrode by a predefined signal. The charging results in at least one charging curve, from which the capacitive load of the at least one display electrode may be determined by measuring the rise time of the charging curve of the charging, and calculating the position of the at least one conducting object, with respect to said display device based on the determined capacitive load.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 10, 2013
    Assignee: Integritouch Development AB
    Inventor: Anders Swedin
  • Patent number: 8531430
    Abstract: A touch screen touch screen display includes a bottom conductor layer coupled to a top conductor layer. The bottom conductor layer extends beyond the top conductor layer adjacent the top conductor layer, exposing a region of the bottom conductor layer. One or more manually actuatable components (e.g., buttons) are coupled to the region of the bottom conductor layer. The bottom conductor layer may include a substrate (such as a polycarbonate layer) and a polymer layer (such as polyethylene terephthalate) formed on the substrate.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: September 10, 2013
    Assignee: Symbol Technologies, Inc.
    Inventor: Carl Thelemann
  • Patent number: 8525796
    Abstract: A method, system, and computer program product for determining a level of cleanliness of a multi-touch screen display, characterizing objects that make contact with the screen, and initiating a specific maintenance action on the screen, based on screen cleanliness and the object(s) characterization(s). A screen diagnostic and maintenance (SDM) utility initiates a number of procedures to determine the type of object(s) and a set of characteristics of object(s) that make contact with the touch screen. Based on the results of the procedures, the SDM utility characterizes/identifies the object(s). In addition, the SDM utility initiates maintenance screen check(s) based on information stored in maintenance configuration file(s). Based on the results of the maintenance check(s), configuration file(s) data and type and characterization of the object(s) that have made contact with the screen, the SDM utility determines the type of maintenance that is performed and the timing/schedule of the maintenance action(s).
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 3, 2013
    Assignee: International Business Machines Corporation
    Inventors: Nicole M. Arnold, Lydia M. Do, Pamela A. Nesbitt, Lisa A. Seacat
  • Patent number: 8519965
    Abstract: An multi-touch detection system (100) separately determines each of the coordinates of multiple touches and is able to correctly pair the coordinates, the touch panel includes multiple (e.g., two or four) separate sections (104, 106, 404, 406, 504, 506, 508, 510) to detect touches in different areas. The system (100) is able to operate at high refresh rates allowing speed sensitive applications to be supported.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: August 27, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Andrew N Cady, Tomohiro Ishikawa, Robert D Polak
  • Patent number: 8514204
    Abstract: A capacitive touch panel has a plurality of traces including a boundary trace, and a virtual trace is defined outward of the boundary trace and assigned with a virtual coordinate and a virtual capacitance for interpolation to position a touch point around the boundary of the capacitive touch panel, thereby eliminating the non-addressable region of the capacitive touch panel.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: August 20, 2013
    Assignee: Elan Microelectronics Corporation
    Inventors: Hung Nien, Yi-Hsin Tao, Chih-Hsien Teng, Hsin-Shieh Tsai, Chun-Chung Huang, Chia-Hsing Lin
  • Publication number: 20130201152
    Abstract: Methods and apparatus are provided for determining an input position of a touch object. An input signal is received from the touch object, and one or more sensing signals are output. A resistance of each of one or more sub-loops is measured, and a resistance information lookup table is generated with each resistance value of a corresponding sub-loop of the one or more sub-loops. The one or more sensing signals are corrected based on the resistance information lookup table. The input position of the touch object is determined based on the corrected one or more sensing signals.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 8, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Samsung Electronics Co., Ltd.
  • Patent number: 8493358
    Abstract: A touch-sensitive device includes a touch panel, a drive unit, a sense unit, and a measurement unit. A touch applied to a node of the panel changes a capacitive coupling between two electrodes (a drive electrode and a sense electrode) of the touch panel. The drive unit delivers a drive signal, which may comprise one or more drive pulses, to the drive electrode. The sense unit couples to the sense electrode, and generates a response signal that that is used to accumulate charge in a charge accumulator to provide an accumulated signal. The accumulated signal is responsive to the capacitive coupling between the electrodes, and is measured to provide an indication of a touch at the node.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 23, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas J. Rebeschi, Craig A. Cordeiro
  • Patent number: 8487903
    Abstract: A display device incorporating a touch panel that can be made thinner than a conventional one and requires no countermeasure against misalignment in overlapping is provided by incorporating a touch panel. The display device incorporating a touch panel includes a display panel having a first substrate and a second substrate. The second substrate has a conductive light shielding film formed in a grid pattern on a surface on the opposite side from an observer. The conductive light shielding film is used as a touch panel electrode of electrostatic capacitive coupling system. The conductive light shielding film has a shape with four corners. The corners of the conductive light shielding film are connected to a touch position detection circuit. The display panel has four conductive members.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: July 16, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kouichi Anno, Shigeyuki Nishitani
  • Patent number: 8486284
    Abstract: A method for forming a touch sensing pattern and signal wires, comprises the steps of: installing a first and a second conductive plating films on a surface of a highly transparency substrate; projecting a high energy light beam to the conductive plating films; and the high energy light beam moving with respect to the substrate along a predetermined track; a plurality of insulating trenches being formed in the first and second conductive plating films so as to form predetermined patterns for a sensing area and a wire area; a yellow light process being performed on the substrate; a layer of light resistor thin film being formed on a surfaces of the wire area; and etching the first conductive plating film in the sensing area; by above steps, the predetermined pattern in the sensing area being formed in the second conductive plating film.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: July 16, 2013
    Inventors: Kai-Ti Yang, Chih-Cheng Chang, Chih-Yung Liu, Chen-Ning Yang
  • Patent number: 8487900
    Abstract: An LCD and a touch display panel that can be integrated in the LCD are provided. The touch display panel comprises an active device matrix substrate that includes multiple sensing lines disposed on multiple data lines correspondingly and arranged parallel thereto, and multiple sensing devices formed on multiple scan lines. When an external pressure is exerted, a current is generated in the sensing lines, and the X and Y coordinates of the touch point is determined from a slight leakage current generated in the scan lines. The conventional external touch screen LCD device is substantially improved in response accuracy of the touch coordinates, material costs, and mechanical thickness.
    Type: Grant
    Filed: August 23, 2009
    Date of Patent: July 16, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Po-Chia Chiu, Shih-Yu Hsu, Yung-Cheng Chen
  • Patent number: 8482437
    Abstract: An apparatus and method for selecting a keyboard key based on a position of a presence of a conductive object on a sensing device and a pre-defined area of the keyboard key. The apparatus may include a sensing device and a processing device. The sensing device may include a plurality of sensor elements to detect a presence of a conductive object on the sensing device. Multiple keyboard keys are assigned to pre-defined areas of the sensing device. The processing device is coupled to the sensing device using capacitance sensing pins, and may be operable to determine a position of the presence of the conductive object, and to select a keyboard key based on the position of the conductive object and the pre-defined areas of the sensing device.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: July 9, 2013
    Assignee: Cypress Semiconductor Corporation
    Inventors: Liu Hua, Jiang XiaoPing
  • Patent number: 8482537
    Abstract: A protection panel having a touch input function of the analog resistance film method for detecting an X-Y coordinate representing an operated position by a potential gradient based on a touch operation relative to the front substrate 6, in which the back substrate 5 and the front substrate 6 include contacts 5G and 6G, respectively, connected to each other in series on the resistance films 5A and 6A through the routing circuits 5C and 6C to have potential difference, in which the contacts 5G and 6G face each other at a predetermined distance when the back substrate 5 and the front substrate 6 are connected to each other, and in which a switch 12 is provided for detecting, when voltage is applied by the contacts 5G and 6G between the electrodes 5D or 6D of either one of the front substrate 6 and the back substrate 5, whether or not the contacts 5G and 6G are brought into contact with each other based on voltage detected by the electrodes 5D or 6D of the other of the front substrate 6 and the back substrate 5.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: July 9, 2013
    Assignee: Nissha Printing Co., Ltd.
    Inventors: Jun Shimizu, Toshiyuki Iwai, Mitsutoyo Toshihara, Kazuhiro Nishikawa, Yoshihiro Kai
  • Patent number: 8477115
    Abstract: An input device includes: a contact detector configured to detect at least a size of contact area by detecting a physical contact with a control input section; a pressure detector configured to detect a pressure applied by the physical contact; and a controller configured to output signals in response to detection outputs from the contact detector and the pressure detector. The controller outputs a first signal carrying a value which varies in response to the pressure detected under a state of contact in which a contact detection result indicates that the detected contact area is equal to or smaller than a predetermined contact area, and outputs a second signal carrying a value which varies in response to the pressure detected under a state of contact in which the contact detection result indicates that the detected contact area is greater than the predetermined contact area.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: July 2, 2013
    Assignee: Sony Corporation
    Inventor: Junichi Rekimoto
  • Patent number: 8477105
    Abstract: A display comprising: an electro-optical material arranged between first and second planes facing each other; a first substrate arranged on the first plane and including a conductor that affords an electrical signal to the electro-optical material; a first electrically conductive film arranged on the second plane to afford an electrical signal to the electro-optical material; a second electrically conductive film arranged outside an area sandwiched between the first and second planes; and a current detection circuit that detects the current on the second electrically conductive film.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: July 2, 2013
    Assignee: NLT Technologies, Ltd.
    Inventors: Hiroshi Haga, Jiro Yanase, Yoichi Kitagishi
  • Patent number: 8466898
    Abstract: An input device includes an insulation layer having a first main surface, and a second main surface positioned on the opposite side of the first main surface, a first detection electrode pattern provided on the first main surface of the insulation layer and arranged along a first direction, a second detection electrode pattern arranged along a second direction and having an intersection region provided on the second main surface of the insulation layer so as to intersect with the first detection electrode pattern in a plan view, and a detection region provided on the first main surface of the insulation layer, and a conductive electrode provided on the second main surface of the insulation layer, in which the conductive electrode has an opening, and the intersection region of the second detection electrode pattern is positioned in the opening.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: June 18, 2013
    Assignee: Kyocera Corporation
    Inventors: Yasunari Nagata, Takashi Shimizu, Yoshio Miyazaki, Takashi Minami
  • Patent number: 8466893
    Abstract: A system and method for detecting at least two-finger input on a touch screen of a display such as computer, etc. includes a display screen; a sensing grid arranged for sensing touch on said display screen; a plurality of electrodes connected electrically to the sensing grid. A controller receives an output from the sensing grid, and a module identifies at least two points on the grid indicating locations of the display screen that have been touched by a user and identifies a geographic portion of the display screen to be identified based on said at least two points. As the position of the fingers are relative to the position of the screen via change in a direction of a Z-coordinate, a variable zoom can be provided by the sensing grid commensurate with different distances that the multiple fingers are sensed from the display screen.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: June 18, 2013
    Assignee: Adrea, LLC
    Inventors: Gerrit G. Hollemans, Huib V. Kleinhout, Heneriette C. M. Hoonhout, Sander B. F. van de Wijdeven, Vincentius P. Buil
  • Patent number: 8451249
    Abstract: A touch sensitive active matrix display device is provided. The device includes a display fabricated on a first flexible substrate, said display having a viewing surface. The device further includes a touch sensitive sensor including a second flexible substrate, under said display. The touch sensor is operated by touching said viewing surface of said display, and said combined display and touch sensitive sensor is flexible.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: May 28, 2013
    Assignee: Plastic Logic Limited
    Inventors: Seamus Burns, Sharjil Siddique, Simon Jones
  • Patent number: 8446372
    Abstract: An apparatus, system, and method are disclosed for automated touchpad adjustments. A Touchpad Corrective Action (TCA) detection module detects a TCA within a specified input limit after a touchpad input. An adjustment module decreases a touchpad sensitivity in response to detecting the TCA.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: May 21, 2013
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Howard Locker, James Joseph Thrasher, Jennifer Greenwood Zawacki
  • Patent number: 8446380
    Abstract: A resistive multi-point touch device and method is disclosed. A plurality of wires intersect each other to form a plurality of intersecting regions. The intersecting wires are separated from each other by a plurality of insulating particles. First, suppressed intersecting regions are sensed, and then contact points on the suppressed intersecting regions are sensed based on the suppressed intersecting regions. Sensing of the suppressed intersecting regions is performed by first sensing suppressed wires, and then determining possibly suppressed intersecting regions based on the suppressed wires, and sensing suppressed intersecting regions based on these possibly suppressed intersecting regions.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: May 21, 2013
    Assignee: Egalax—Empia Technology Inc.
    Inventors: Chin-Fu Chang, Shang-Tai Yeh
  • Patent number: 8446388
    Abstract: Disclosed herein is a resistive touch screen. The resistive touch screen includes a resistive touch panel configured to include a lower substrate formed with a lower electrode pattern in an active region through which images pass, an upper substrate formed with an upper electrode pattern to be opposite to the lower electrode pattern, and a spacer spacing the upper substrate from the lower substrate in order to contact the upper electrode pattern to the lower electrode pattern by external pressure; and a window bonded to the upper portion of the resistive touch panel by an optical clear adhesive, and including a covering film formed in the outer side region on the lower surface thereof and an elastic suppressing layer formed in the inner side region of the covering film.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: May 21, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd
    Inventors: Woon Chun Kim, Yong Soo Oh, Hyun Jun Kim, Jong Young Lee
  • Patent number: 8436827
    Abstract: Disclosed is a method and corresponding apparatus or system for disambiguating touch-input based on variation in a characteristic such as speed or pressure along a touch-trail. A computing system may detect a variation in a characteristic of a touch-trail, such as variation in speed of movement of touch along the touch-trail and/or a variation in pressure of touch along the touch-trail. Based on the detected variation, the computing system may determine an intended touch position represented by the trail, such as a landing position or lifting position for instance. And the computing system may take action based at least in part on that determined touch position.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 7, 2013
    Assignee: Google Inc.
    Inventors: Shumin Zhai, Lawrence Diao
  • Patent number: 8436822
    Abstract: A touch panel has a panel capacitor, a first capacitor, and a second capacitor. The panel capacitor and the first capacitor are charged and discharged cyclically according to a first phase signal and a second phase signal, such that an input voltage associated with the panel capacitor and the first capacitor is applied to a control circuit. The control circuit charges and discharges a second capacitor based on the input voltage and a reference voltage to compensate the difference between the input voltage and the reference voltage. The capacitance of the panel capacitor could be calculated based on the frequency of charging and discharging the second capacitor.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: May 7, 2013
    Assignee: Himax Technologies Limited
    Inventors: Yaw-Guang Chang, Chin-Feng Hsu
  • Patent number: 8427442
    Abstract: A touch apparatus including a touch panel and a touch sensing circuit is provided. The touch panel includes a first transparent substrate, a plurality of first conductive patterns, a second transparent substrate, a plurality of second conductive patterns and a plurality of spacers. The touch sensing circuit includes a first demultiplexer, a second demultiplexer, a first multiplexer, a second multiplexer, a third multiplexer, a fourth multiplexer, a fifth multiplexer, a sixth multiplexer and an analog/digital converter (ADC). The fifth multiplexer and the sixth multiplexer are used for modulating a signal receiving range of the ADC and thus the touch sensing circuit is easily judge a correctness of a sensing signal.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: April 23, 2013
    Assignee: Wintek Corporation
    Inventors: Ting-Yu Chang, Chih-Chang Lai
  • Patent number: 8420958
    Abstract: A position apparatus of a touch device and a position method thereof are provided, wherein the touch device includes a plurality of scan lines. In the position method, a plurality of capacitances in the scan lines are sensed. Next, a plurality of capacitances respectively sensed in an ith scan line of the scan lines and a subset of the scan lines neighboring with the ith scan line are selected. When the capacitance sensed in the ith scan line is larger than each of the capacitances sensed in the subset of the scan lines, the capacitance sensed in the ith scan line is determined as a peak capacitance. Finally, a touch position is calculated according to the peak capacitance and the capacitances sensed in the subset of the scan lines.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: April 16, 2013
    Assignee: ITE Tech. Inc.
    Inventors: Cheng-Long Lu, Shun-Ken Huang
  • Patent number: 8421773
    Abstract: A resistive touch panel includes a first substrate, a second substratem and a driving circuit. A first conductive layer is disposed on the first substrate and includes a first, a second, a third, and a fourth corners which are different from each other. A first, a second, a third, and a fourth conducting wires are electrically connected to the first, second, third, and fourth corners, respectively. The second substrate is disposed parallel to the first substrate. A second conductive layer is disposed on the second substrate and faces the first conductive layer. A fifth conducting wire is electrically connected to a first side of the second conductive layer while a sixth conducting wire is electrically connected to a second side of the second conductive layer. The driving circuit is electrically connected to the first, second, third, fourth, fifth, and sixth conducting wires.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 16, 2013
    Assignee: Wintek Corporation
    Inventors: Jyun-Sian Li, Chih-Chang Lai, Ting-Yu Chang
  • Patent number: 8421772
    Abstract: A resistive touch control device and driving methods and a driving controller thereof are provided to switch operation modes of a touch panel. Depending on the user's requirement, the touch panel can be operated in multi-touch mode or only in an analog mode with high resolution. In other words, the touch control device can be operated in a digital mode, the analog mode, or a hybrid mode including both of the digital and the analog modes.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: April 16, 2013
    Assignee: Wintek Corporation
    Inventors: Jian-Feng Li, Wen-Chun Wang, Chih-Chang Lai, Kuo-Chang Su, Gwo-Sen Lin, Chih-Hao Wang
  • Patent number: 8421765
    Abstract: A touch sensing device capable of accurately detecting a touched position on a touch panel includes a touch panel, a conversion unit and a calculation unit. The touch panel having a plurality of horizontal sensing lines and vertical sensing lines generates a plurality of horizontal sensing signals and vertical sensing signals in response to a touch on the touch panel. The conversion unit generates a plurality of two-dimensional (2D) sensing signals according to the horizontal and vertical sensing signals. The calculation unit determines a touched position on the touch panel according to the 2D sensing signals.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: April 16, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventors: Chi Kang Liu, Guo-Kiang Hung
  • Patent number: 8416215
    Abstract: A system based on a standard resistive touch screen that is capable of detecting double point or finger taps or gestures, and districting them from single point or finger taps or gestures. The system uses either a standard analog touch controller capable of four measurement types or a modified analog touch controller capable of six or more measurement types, and the fixed known resistance ratio of the touch film layers, to calculate an approximation of the location of up to two separate touch points on the screen. A collection of the location samples is used to detect different single and double finger gestures.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: April 9, 2013
    Inventor: Itay Sherman
  • Patent number: 8416213
    Abstract: A sensing apparatus and a scan driving method thereof are provided. The sensing apparatus includes first and second electrodes, a sensing element array, first and second electrode scan driving circuits and a control circuit. The sensing element array outputs at least one first inductive voltage after being touched. The first electrode scan driving circuit sequentially scans and drives the first electrodes, wherein the driven first electrode is set to a high level output state and the first electrode not being driven is set to a low level output state or a grounding state. The second electrode scan driving circuit sequentially scans and drives the second electrodes, wherein the driven second electrode is set to high impedance (input) state, and the second electrode not being driven is set to a low level output state or the grounding state. The control circuit controls the first and second electrode scan driving circuits.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: April 9, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Tang Shen, Shao-Hsing Yeh
  • Patent number: 8411062
    Abstract: An apparatus includes a down pump configured to generate a regulated voltage signal based, at least in part, on an input voltage and a reference voltage. The apparatus includes a level shifter configured to generate an activation signal having a voltage level corresponding to the reference voltage based, at least in part, on the input voltage and the regulated voltage signal. The apparatus includes a switching device configured to generate a drive signal corresponding to the input voltage in response to the activation signal.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: April 2, 2013
    Assignee: Cypress Semiconductor Corporation
    Inventors: Denis Ellis, Daniel O'Keeffe, Maksym Prybytko
  • Patent number: 8384691
    Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: February 26, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew H. Frey, Lijun Zu, Edward S. Hagermoser
  • Publication number: 20130043081
    Abstract: A multi-function touch panel includes a transparent substrate and an opaque color frame formed by an edge of the substrate so as to form a visible area and a shelter area on the substrate. A transparent touch sensing unit is formed to the visible area on a surface of the substrate. A signal wiring under the shelter area is formed around the touch sensing unit. The signal wiring is electrically connected between the touch sensing unit and a first signal bus. A flat antenna is insulatedly formed outside the signal wiring under the shelter area. Two ends of the flat antenna are electrically connected to a second signal bus. The color frame is made of insulated material. The first signal bus and the second signal bus are integrated as one signal bus.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 21, 2013
    Inventor: SHENG-HSIUNG CHEN
  • Patent number: 8363023
    Abstract: An electronic analysis circuit of a multicontact passive-matrix tactile sensor including an electrical supply mechanism powering one of two axes of the matrix, and a mechanism detecting electrical characteristics along the other axis of the matrix, at intersections between the two axes. The supply axis and the detection axis are alternated. A multicontact passive-matrix tactile sensor includes an electrical supply mechanism powering one of the two axes of the matrix, a mechanism detecting electrical characteristics along the other axis of the matrix, at the intersections between the two axes, and such an electronic circuit.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: January 29, 2013
    Assignee: Stantum
    Inventors: Pascal Joguet, Guillaume Largillier, Julien Olivier
  • Patent number: 8363025
    Abstract: A touch screen control system comprising a touch screen having first and second conductive layers arranged to be brought together by touching of the screen. A detection system is arranged to detect a contact position at which the screen is touched by monitoring electrical signals from at least one of the layers. The system further comprises an antenna, and the detection system includes a proximity sensing signal generator arranged to generate a proximity sensing signal to be transmitted between the antenna and the first layer via a user of the system. The detection system is further arranged to receive the transmitted proximity sensing signal and determine therefrom the distance between a part of the user and the touch screen.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: January 29, 2013
    Assignee: Jaguar Cars Limited
    Inventors: Richard Dean Parkinson, Carl Anthony Pickering, Ian Richard Thorp, Colin John Wilson, Peter Robert Thomas
  • Patent number: 8355009
    Abstract: Apparatuses and methods are provided for determining coordinates of simultaneous touches on a touch sensor pad. A touch sensor pad includes a first plurality of resistive sensor strips on a first resistive sheet and a second plurality of resistive sensor strips on a second resistive sheet. A user touches the touch sensor pad at multiple locations simultaneously. A controller of the touch sensor pad determines coordinates of each of the multiple locations of touch independently of other touches. To determine coordinates for a touch, the controller identifies a first strip of the first plurality of resistive sensor strips of the first resistive sheet making contact with a second strip of the second plurality of resistive sensor strips of the second resistive sheet in response to the touch.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: January 15, 2013
    Inventor: William J McDermid
  • Patent number: 8345022
    Abstract: A linear compensation method of a touch panel is utilized to a touch control computer system. According to the method, a compensation reference table, including reference temperatures and reference surface resistances at pre-determined reference points having known coordinates at the reference temperatures, is obtained at first. Then, a set of user calibration resistance at the pre-determined reference points is obtained through a user calibration process, so as to obtain ratios of the user calibration resistances to interpolation surface resistances as correction weights. Under different temperature, interpolation surface resistances corrected by utilizing the correction weight to derive the current correction surface resistances that are corrected and nearly identical to actual surface resistances. Therefore, relatively precise coordinates are obtained through resistance-coordinate conversion process.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: January 1, 2013
    Assignee: Getac Technology Corporation
    Inventor: Chang-Han Shen
  • Patent number: 8334848
    Abstract: A resistance type touch display panel includes a first substrate and a second substrate disposed above the first substrate. The first substrate includes many scan lines and data lines defining many pixel regions on the first substrate, many pixel units and touch units. Each pixel unit is located in one of the pixel regions and electrically connected with one of the scan lines and data lines respectively. Each touch unit is electrically connected with one of the scan lines and data lines and distributed in at least two pixel regions. The second substrate includes many spacers, many touch protrusions and a common electrode covering the spacers and the touch protrusions. Each touch protrusion is located above one of the touch units and a gap is formed between the common electrode disposed on each touch protrusion and the touch unit.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: December 18, 2012
    Assignee: Au Optronics Corporation
    Inventors: Mei-Sheng Ma, Hsin-Hung Lee, Yuan-Chun Wu, Kuo-Hsing Cheng
  • Patent number: 8319744
    Abstract: A multi-touch resistive touch panel including a first substrate, a second substrate and a spacing element is provided. The spacing element is disposed between the first substrate and the second substrate. The first substrate has a first transparent electrode, two first conductive electrodes and two second conductive electrodes, wherein the first conductive electrodes are disposed at two boundaries of the first transparent electrode in parallel, and the second conductive electrode are disposed at another two boundaries of the first transparent electrode in parallel and perpendicular to the first conductive electrodes. The second substrate has many second transparent electrodes disposed on a surface of the second substrate facing the first transparent electrode and arranged in a first axial direction, and the second transparent electrodes themselves are extended in a second axial direction perpendicular to the first axial direction.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: November 27, 2012
    Assignee: Wintek Corporation
    Inventor: Jian-Feng Li
  • Patent number: RE44658
    Abstract: An input processing device comprises a display screen and a pointing device for inputting corresponding 2-dimensional coordinates on the display screen. A 3-dimensional space is displayed on the display screen and the 2-dimensional coordinates inputted from the pointing device are detected. Next, shift amounts, per unit of time, of the detected 2-dimensional coordinates are calculated based on a predetermined calculation start condition. And the calculated shift amounts are converted to 3-dimensional coordinate shift amounts in the 3-dimensional space.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: December 24, 2013
    Assignee: Nintendo Co., Ltd.
    Inventors: Hideki Konno, Yoshitaka Ajioka, Yasushi Ebisawa, Kiyoshi Mizuki